We are able to perform NIST traceable calibrations on all types of laboratory or process analyzers and devices. A single mold may be found with the red RSP mark , a green R. Reinhold Schlegelmilch was a porcelain manufacturer in Suhl, Germany, founded in the 19th century. most of the pieces exported to the United States bore the " RS Prussia " mark . and one dated to c.1900's to 1920's (Source: Collector's Encyclopedia of R. Collectors of RS Prussia (RSP) porcelain will likely say it was the elaborate, unique . It's these varieties and combinations that challenge the collector in dating the. In recent decades antique porcelain collectors have increasingly sought after pieces bearing the celebrated Prussian porcelain marks , with the letters " RS " in red. 1 Mark ; 2 Successors; 3 Suhl; 4 Tillowitz; 5 Export; 6 See also. The factory mark was the initials "RS" in red encircled by a green wreath . Prussia porcelain at his factory located in Suhl, Germany from the late 1800s till the start of World War I. Alphabetical Listing of Fine Porcelain, China, and Other Identifying Marks , .. West Germany dates this particular mark to late 1949 or later when West. - A fine antique china teapot by RS of Prussia , dating from between 1870-1918. R S Prussia & More Schlegelmilch Porcelain Featuring Cobalt by Mary J. Glass Bottle Marks - A helpful website for identifying marks and manufacture dates on antique bottles. in green PRUSSIA over a crown with a Beyer & Bock B in a shield dating the. Archives past articles from Philadelphia Inquirer, Daily News, Philly erectile doctors chinese herbal dysfunction medicine clinics in. You can see their backstamps and impressions which include "Made in Germany ," .. Willem / Emens -z-Lf x5\ Grenzhausen CL rs /v/ modern Y ? Read about the trips you missed and start planning for next year!"Pacific Salmon Flies: New Ties & Old Standbys", is available right here.